The November 22 shooting outside a Cleveland recreation center is under investigation, and Tamir's family has filed a lawsuit against two officers and the city over his death.

The homicide finding indicates that Tamir was killed by the police officer, rather than dying accidentally or by natural causes or by suicide. Medical examiners' homicide findings make no comment on whether the killing constitutes a crime.

The cause of death was a "gunshot wound of the torso with injuries of major vessel, intestines and pelvis," according to paperwork provided by Christopher Harris in the medical examiner's communications office.

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A demonstrator in Washington holds a picture of Tamir Rice on December 1 at a protest about a different case: last month's decision by a grand jury not to indict a police officer in the shooting death of Michael Brown in Ferguson, Missouri.

Rice was pointing a pellet gun at people outside the recreation center before he was shot, police say. A witness called 911 to say that a black male -- "probably a juvenile" -- was pointing "a pistol" at people, but added twice that the gun was "probably" fake.

A dispatcher asked officers to respond, but it doesn't appear the dispatcher told them of the caller's suspicions that the gun was probably fake or that the person was probably a minor.